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Some of the world's most famous sights will be going green on 17 March
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The greening of landmarks around the world is becoming a tradition across the world with the encouragement of Tourism Ireland
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The London Eye has gone green in previous years
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The Prince's Palace in Monaco will join in the tradition again for St Patrick's Day 2013
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The Queen has not given permission for a changing of the colour at her official London residence
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If she had, the result might have looked a little like this computer mock-up

Global landmarks that are going green on 17 March include Niagara Falls, the Leaning Tower of Pisa, Burj al Arab in Dubai, Table Mountain in South Africa, New York's Empire State Building and Berlin's TV Tower.